Type bar



H. A. FOOTHOR-AP,

TYPE BAR I Feb'. 15, 19 27. 1,618,075

Original Filed May 5, 1924 awe-11101 fl /KW E W Patented Feb. 15, 1927.

ent re s'rat fi HARRY A. FOOTHORAP, 0F HARRISBURG, PENNSYLVANIA, ASSIGNOR TO. ELLIOTT- FISHER COMPANY, A CORPORATION OF DELl-flN'AItE. 1 V

TYPE BAR. f

Application filed May 3, 1924, Serial No. 710,807.. Renewed'il'uly 1,;1926.

Ihis invention relates to type bars for typewriters, and more particularly to a bar adapted for use in down strike machines.

Theobject of the invention is to produce a simple and efficient type bar of maximum durability and equipped with a shifting head, a head shifter, head spring and spring mounting constructed and arranged to facili tate assemblage and repair.

A subordinateobject is to provide the head'retaining spring with a clip for securing the spring to the bar without necessitating the use of screws, rivets or similar fastening devices which complicate the initial assembling of the parts and render, difficult the ordinary replacements. 5

To the accomplishment of the above objects and others, the preferred embodiment of the invention will be hereinafter described and illustrated in the accompanying drawings. 1

In said drawings:

Fig. 1 is a side elevation of atype bar constructed and equipped in accordance with my invention,

Fig. 2 is a rear elevation thereof.

Fig. 3 is a detail View showing the manner of securing the lower end of the spring.

Fig. 4 is a detail view of. the spring clip. Fig. 5 is a section on the line 55 of r Fig. 1.

Fig. 6 is a similar section illustrating the manner of securing the clip. 7

Fig. 7 is a view similar to Fig. .3, but showing a variation of the means for securing the end of the spring to a bar not provided with the spring notch but having the screw hole sometimes provided for the re ception of a spring securing screw.

A type bar 1 shown in its normal upstanding-position is of angular cross section. as shown in Figs. 5 and 6, and is provided above its lower end with conical trunnions 2 projecting from hubs 3 and designed to be afiorded bearings in the usual brackets.

At the upper end of the bar 1 is mounted a a pivoted type head 4 having stop faces 5 and 6 which contact with'the front and rear faces of the bar in the normal and, shifted positions of the head. Pivotally mounted on the heads in rear of the axis thereof is head shifter 7 extended upwardly to form a trigger 8 designed, during the descent to the bar, to engage a trip (not shown) which, as

the bar continues its movement, serves tov swing the head shifter on its axis for the purpose of shifting the head from one case position to another.

At the rear end of the head 4: is formed a right angles to form a locking flange 13 extending into a notch l i in the rear side of the type bar. An interlocking of'the bar and spring is thus effected, .and longitudinal movement of the spring is "made impossible.

To retain the spring 12 securely upon'the type bar I provide a spring clip'15 compris ing'a plate 16 having widenedupper and lower ends 17 and 18, each of which is provided at one side with an eye 19 and at its opposite side with a tongue 20.

In practice, the spring having been placed in position (as shown in Fig. 1) the clip,

' which is made of comparativelythin pliable metal and has been formed tothe approximate contour of the bearing, is placed in position with its upper and lower ends bent around the bar and spring and lockedby passing the tongues 20 through the eyes 19 and bending the tongues back intothe formof hooks, as shown in'Fig. 5.

The rear end 21 of the head shifter constitutes a releasing cam which engages the upper end of the spring 12 and forces the spring from under the stop, face 9 of the headduring the first part of the movement of the type bar subsequent to the engagement of the trip by the trigger 8. As will be obvious, the head shifting operation consists first in the disengagement of the spring 12 which retains the head in normalposition and then the swinging of the head to its shifted position where it is held by the pressure of the spring against what will now be the rear side of the head. This action will also disclose the reason for the angular form of the lever 12 between its upper end 10 and the type bar. It will be noted that the bend 22 in the spring" is so located that that portion of the spring lying between the bend and the end 10-;will be disposed in such angular relation to the bar that the spring will be cammed back by the rearend of the head when, upon the retraction, the igger sary to remove or omit the flange 13 at the ,lower end of the spring and to punch the metal of the spring into the screw hole.

It is thought that from the foregoing the construction and advantages of a type bar constructed and equipped in accordance with my invention will be clearly understood, but I Wish to expressly reserve the right to effect such variations of the illustrated structure as may come fairly within the scope of the protection prayed.

WVhat I claim is:

1. A type bar having a movable type head, a retaining spring therefor, and a clip embracin the bar and s ring and havin interlocking portions. 2. A type bar having a movable type head,

a headretaining spring having interlocking engagement with the bar, an-d'a clip retaining the bar in such interlocking engagement and having interlocking portions.

3. A. typ-e bar having a head retaining spring provided at one end with interlocking engagement with the bar, and a clip embracing the bar and spring and provided at each end with an eye and tongue, each of the tongues being passed through an eye and bent back to lock the clip in place.

t. The combination with a type bar and a head retaining spring disposed along the bar and interlocking at one end with the bar, of a clip disposed longitudinally oI the bar and having its opposite ends widened and embracing the bar and spring at tworemote points one'of which is in'proximity to the end of the spring adjacent to its interlocking engagement with the bar and the other of which is at a point which determines the point from which the spring shall flex, the opposite ends of each widen-ed portion of the clip being interlocking.

In testimony whereof I hereunto afiix my signature.

7 i H RY A. FOOTHORAP. 

